Industrial Ethernet Embedded Switch
What Factors Should Be Considered When Selecting An Ethernet PHY?
As digitisation becomes more deeply integrated into every aspect of our lives, so too is the amount of data constantly exchanged between different devices and machines. In industry, in particular, traditional communication technologies are beginning to reach their limits, and Ethernet (in this case, industrial Ethernet) is becoming the new standard. With Ethernet, gigabit data rates can be achieved over distances of up to 100 meters, or even several kilometers if fiber optic cables are used.
Ethernet is an interface specification specified in IEEE 802.3. The Ethernet Physics (PHY) layer is an element of IEEE 802.3. It is a transceiver component used to send and receive data or Ethernet frames. In the OSI model, Ethernet covers part of Layer 1 (physical layer) and layer 2 (data link layer).
Several Important Criteria To Consider When Choosing An Industrial PHY
一、Network Cycle Time
The network cycle time is the time required by the controller to collect and update the data of connected devices Between. PHY with low latency improves the network by shortening network cycle time Update time, which is critical for time-critical applications. Such a More devices can be connected to the network.
二、Anti-interference ability/Robustness
Working conditions in industrial applications are often harsh. The PHY will connect directly to or pass Too small magnetic elements are connected to cables and these connections may cause interference (radiation or Conduction), so the PHY must be able to tolerate common external conditions. EMC standards such as CISPR 32 and IEC 61000-4-2 through IEC 61000-4-6 can be used as a benchmark for measuring PHY specifications. A reliable PHY helps with certification and avoids the often tedious work of redesigning.
三、Loss And Temperature Range
Devices used in industrial applications are typically protected against dust and moisture with an IP65/IP66 rating, which limits the airflow used to cool electronics. At the same time, devices in industrial applications often need to withstand high temperatures. In addition, in linear and toroidal topologies, two Ethernet connections are typically required and therefore two PHYs are required, doubling the PHY losses associated with data input and output. Therefore, a PHY with low loss should be selected to minimize the spontaneous heat of the device.
Industrial Ethernet Embedded Switch
The embedded Real-time Ethernet switch product family is the ideal solution for increasing industrial Ethernet connectivity in any field device or controller application. They are designed to support scalable and flexible system development, supporting all major industrial Ethernet protocols, while also providing many future-oriented time-sensitive networking (TSN) capabilities for IEC/IEEE 60802 industrial scenarios.
They can be easily interfacing with any host processor, including any ARM® CPU, while leveraging specific protocol device drivers provided by ADI. This allows for flexible system partitioning to select processors that are appropriate for application requirements. It is also free to leverage any vendor protocol stack.
